<!DOCTYPE html>
<html lang="cn">
<head>
    <meta charset="UTF-8">
    <title>循环</title>
    <style type="text/css">
        table{
            border-collapse: collapse;
        }
        td{
            border: black 1px solid;
            background-color: red;
        }
    </style>
    <script src="03.js" type="text/javascript" charset="UTF-8"></script>
</head>
<body>

</body>
</html>